Recording phongraph



S pt- 1, 1942- E. v. SCHNEIDER 2 ,294,576

RECORDING PHONOGRAPH I 5 Sheets-Sheet 1 Filed Aug. 13, 1941 Sept. 1,1942. E. v. SCHNEIDER RECORDING PHONOGRAPE Filed Aug. 13, 19 13 3Sheets-Sheet 2 ilmaf VJZ/meidar Sept. 1, 1942. 'E. v. SCHNEIDER IRECORDING PHONOGRAPH Filed Aug. 13, 1941 3 Sheets-Sheet '3 4 3W- lllmor1 JZ/meider v of arms fixed thereto and provided Patented Sept. 1, 1942UNITED STATE nuoonmno PBONOGRAPH Emmor V. Schneider, Alliance, Ohio,assignor Alliance Manufacturing Company, Allian to ce,

Ohio, a corporation of Ohio Application August is, 1941, Serial No.406,622

11 Claims.

The invention relates to phonographs, and more particularlyto mechanismfor mounting the reproducer in the pick up arm of a phonograph adaptedfor recording or cutting records.

The recent revival oi interest in radio phonograph combination units hascreated a considerable demand for a phonograph for home use; adapted formaking records as well as playing the records-so made at home and theusual commercial records.

The object of the present improvement is to provide a phonograph of thisgeneral character low priced electric operated having a hollow pick uparm in which the reproducer is pivotally mounted and provided withspring means for adjusting the tension upon the reproducer.

Another object is to provide a phonograph having a pick up arm of thecharacter mentioned in which the spring tension adjusting means holdsthe reproducer assembled within the pick up arm.

Still another object is toprovide a device of this character in whichthe reproducer has a pair with V-shaped tangs stamped therefrom andadapted to pivot within V-shapedopenings in a supporting bracket carriedby the pick up arm.

Astill further object of the invention is to provide such a device inwhich a tension spring is connected to the outer ends of the arms and toa stationary member carried by the pick up arm for holding the V-shapedtangs in pivotal contact with the V-shaped openings oflthe supportingbracket. I A still further object is to provide such a device in whichan adjusting screw carried by the pick up arm adjustably supports thetension spring for adjusting the'tension upon the needle "carried by thereproducer.

Another object issthe provision of a device of I this character in whichspring arms are connectedto the reproducer and provided with the V-shaped tangs for pivoting the same within the pick up arm.

" The above objects together with others which -will be apparent fromthe drawings and following description, or which may be later referredto, may be attained by constructing the improved pick up arm in themanner illustrated in the accompanying drawings in which Fig. 1 showingthe tension adjustment set to give the greatest tension upon theneedle;.

Fig. 3, a similar view showing set to give the least tension.

Fig. 4, a bottom plan view of pick up arm;

Fig. 5, a section taken as on the line 5-5, Fig. 4; and

Fig. 6, a detached perspective view of the reproducer and the arms bymeans of which the reproducer is pivoted within the pick up arm.

- Similar numerals refer to similar throughout the several views.

The platform of a phonograph cabinet is indicated generally at It andprovided with the spindle ll upon which the turntable I2 is rotatablymounted in usual and well-known manner and adapted to .supportthe recordl3 to be played back as the case may be.

As in usual practice the turntable l2 may be rotated in the properdirection as indicated by the arrow in Fig. 1, and at the desiredspeedby any suitable and well-known drive mechanism parts which it is notthought necessary to illustrate,

metal of hollow construction'as shown provided with the depending sidewalls i9 and forwardand rear end walls 20 and 2| respectively, and has apair of headed studs 22 fixed to the inner side of the side walls l9and-received in the notches 23 in the rear ends of the upright flangesl1 of-the channel bracket It so that the pick up arm may be pivotedthereon and adapted to be raised or lowered to the inoperative oroperati-ve positions respectively,- as desired. 1

The pick up arm is held in pivotal relation upon the bracket by means ofthe coil spring 24 hav-- ing one end connected to the upper rear comerof the pickup arm as indicated at 25 and the other end connected to theear 26 at the forward end portion of the bracket I6.

' Figure 1 is a top plan view of a phonograph I provided with theimproved pick 'up arm; i Fig. 2, a vertical longitudinal section throughthe improved pick up arm taken on the For the purpose or limiting thedownward movement or the pick up arm an adjustable stop screw 2] isthreaded within the hollow boss 28 fixed within-the pick up arm, thelower end of I the screw being arranged to contact the rear-- line 2-2,end portion of the bracket i6.

the adjustment the improved cut or is mounted upon the plate I 3! withinthe hollow pick up arm.

This reproducer may be of any usual or desirable construction and designand is adapted to receive the usual needle 32, a cutting needle beingshown in the drawings, the needle being held in position as by the usualstop screw 33 adapted to 'be received through the vertical slot 34 inthe forward end wall of the pick up arm.

For the purpose of mounting the reproducer within the pick up arm a pairof sheet metal arms 35, preferably of spring material, are attached attheir forward ends to the rear end portion of the reproducer as by therivets 36 or their equivalents. The rear ends oat these arms may beconnected together as by the pin 31 and each arm is providedintermediate of its ends with an outwardly stamped triangular orV-shaped tang 38, the apex thereof being received in the apex of a V-shaped opening 33 of a wider angle formed in the corresponding leg 40 ofan inverted U-shaped bracket 4| fixed within the hollow pick up arm. Inorder to hold the reproducer and arms 35 assembled within the pick uparm and to provide for adjusting the position of the reproducer so as toregulate tension of the needle 32 upon the record l3 an adjusting screw42 and tension spring 43 are provided.

The screw 42 has an unthreaded portion 46 swiveled within the bearing 45fixedly mounted through the top of the pick up arm, washers or gaskets46 and 4! being located around the unthreaded shank of the screw in theupper and lower ends of said bearing, the lower washer being heldagainst end movement on the screw as by the cotter pin 48.

' The adjusting screw is thus rotatably mounted within the bearing 45and held against end movement relative thereto.

One endof the spring 43 is hooked around the pin 31 as indicated at 43and the other end thereof is provided with a hook 50 engaged in thethreads of the screw 44 whereby rotation of the screw by means of theknurled head thereon will cause the hook 50 of the spring to ride in thethreads of the screw to a point above or below the pivotal center of thetangs 33 in the V-grooves 39,. as indicated in Figs. 2 and 3,respectively, causing the forward end of the reproducer to move downwardor upward, respectively, thus, increasing or decreasing the tensionthereon.

In order to prevent any vibrations of the screw 43 from being picked upby the reproducer when the phonograph is being operated, particularly inthe cutting or recording of a record, the spring may be damped as by thecore of felt 52 located therethrough.

It should be understood that the adjustable stop screw 21 may beoperated to limit the downward movement of the pick up arm l3 upon itspivots 22 in order to conIorm to the adjustment oi the tension by meansoi the adjusting screw 42 so that the desired tension may be placed uponv the cutting needle 32 in order that the record may be cut to thedesired depth.

Although Figures 2 and 3 show extremes 01 adiustment in both directionsit should be understood that the reproducer may be moved from a pointabove to a point below center or vice versa by only a fractional turn ofthe adjusting screw It should also be understood that although the pickup arm and reproducer illustrated are provided 'with a cutting orrecording needle 32 the invention is equally applicable to a pick up armand reproducer designed for playing back or re produclng out records orto a combination arm and reproducer designed for both recording andreproducing oi records without in any way changing the construction oroperation of the mechanism illustrated and described for producing theadjustmentabove set forth.

I claim:

1. In a phonograph including a turntable, a hollow pick up anm, meanspivotally mounting one end 0! the pick up arm adjacent to the turntable,and a reproducer located within the other end of the hollow pick up arm,a pivot mounting for adjustably mounting the reproducer within the pickup arm, said pivot mounting including a pair of arms rigidly attached tothe reproducer, V-shape tangs upon said arms. and the pick up arm havingV -shape .notches of greater width than said tan-gs, the apices of theV-shape tangs being pivotally mounted in the apices of said V- shapenotches.

2. In a phonograph including a turntable, a hollow pick up arm, meanspivotally mounting one end of the pick up arm adjacent to the turntable,and a reproducer located within the other end 0'! the hollow pick uparm, a pivot mounting for adjustably mounting the reproducer within thepick up arm, said pivot mounting including a pair of spring arms rigidlyattached to the reproducer, V-shape tangs upon said arms, and

the pick up am having V-shape notches of greater width than said tangs,the apices of the V-shape tangs being pivotally mounted in the apices ofsaid V-shape notches.

3. In a phonograph including a turntable, a hollow pick up arm, meanspivotally mounting one end or the pick up arm adjacent to the turntable,anda reproducer located within the other end of the hollow pick up arm,a pivot mounting for adjustably mounting the reproducer within the pickup arm, said pivot mounting including a pair of arms rigidly attached tothe reproducer, V-shape tangs upon said arms, and the pick up arm havingV-shape notches of greater width than said tangs, the apices of theV-shape tangs being pivotally mounted in the apices of said v-shapenotches, and spring means for holding said arms, and the pick up-armhaving V-shape notches of greater width than said tangs, the apices ofthe v -shape tangs being pivotally mounted in the apices of saidV-shaped notches, and spring means for holding the tangs in the notches.

5. In a phonograph including a turntable, a hollow pick up arm, meanspivotally mounting one end of the pick up arm adjacent to the 'ducerwithin the pick up arm,

ing screw in the hollow pick up arm,

' table, and a reproducer p p to the outer ends of said arms and havinga -of greater width than apices, of the, v-shape mounted inthe anadjusting screwlocated endn springconnected ing screw, and meanslimiting the downward I x t turntable, and a reproducer located withinthe other end of the hollow pick up arm, a pivot mounting for adjustablymounting the reprosaid pivot mounting including a pair. of arms rigidlyattached to the reproducer, V-shape tangs upon said arms, and the pickup arm having V-shape notches of greater width than said tangs, theapices of the \I-shape tangs being pivotally mounted in the apices ofsaid V -shaped notches, an adjustpick up arm, and a spring connectedatone end to the outer ends of said arms and having a hook at its-otherend engaged in the threads of the adjusting screw.

6. In a phonograph including a turntable, a means pivotally mounting oneend of the-pick up arm adjacent to the tumend of the hollow pick up arm,

the pick up arm, said pivot mounting including a pair of arms rigidlyattached to. the repro-. ducer, V-shape tangs upon said arms, and thepick up arm having V-shape notches of greater width than said tangs, theapices of the v-shape tangs being pivotallymounted in the apices of saidV-shape notches; anadjusting screw in the and a spring connected at oneend hook at its otherend engaged in the threads of the adjusting screw,and. means limiting the downward movement of the pick up arm.

"I. In a phonograph including a' turntable, a hollow pick up arm,,meanspivotally mounting .one end of the pick up arm adjacent to theturntable, and a reproducer located within the other end of the hollowpick up arm, a pivot mounting for adjustably mountingthe reproduc orwithin the pick up arm, saidpifot mounting including a pair of armsrigidly attached to the reproducer, V-shape tangs. upon said arms, aninverted, U-shape bracket mounted within the whollowpick up arm andhavingv v-shape notches the'tangs, the apices of the V-shape tangs beingpivotally mounted in the apices of said V-shape notches, an adjustingJscrew located through the bracket, and a spring the outer ends of saidconnected at one end to arms and having a hook at its other end engazedin the-threads of the a'djustlng screw. 8. In a phonograph including aturntable, at hollow'pick' up arm, means pivotally mounting one end ofturntable, and a reproducer located within the other end of the hollowpick up arm, pivot mounting for adjustably mounting the "repro-.

' ducer within thepick up arm, said pivot mountins includinga pair ofarms rigidly attached'to the reproducer, V-shapetangs upon said arms, aninverted, U-s hape-bracket 'n'i'ounted within the hollow pick up arm andhaving V-shape notches of greater width thanthe tangs, the

apices of saidV-shape notches,

at oneend to ends of said arms and otherend engaged in the thr'ead'soithe adjustthe, pick'up'arm adjacent to the tangs being pivotally throughthe bracket,

\ turntable and a reproducer from, forwardly disposed ing outwardly froman intermediate portion of 'the. arms, the pick up movement of the pickup arm.

9. In a phonograph including a turntable, a hollow pick up arm, meanspivotally mounting one end of the pick up arm adjacent to the other endof the hollow pick up arm, mounting for adjustably mounting thereproducer within the pick up arm, said pivot mounting including a pairof arms rigidly attached-to the reproducer and extending rearwardlythere- V-shape' tangs extendarm having V-shape than said tangs, thetangs being pivotally notches of greater width apices of the V- hape*mounted in theapices of said V-shape notches,

located within the other 1 a pivot mounting for adjustably mounting thereproducer within "mg one end of the pick a pin connecting the rear endsof the arms, an adjusting screw in'the pick up arm extending betweensaid arms at a point adjacent to the V- shape tangs, and a springconnected at one end to the pin and engaged in the threads of theadjusting screw.

10. In a phonograph including a turntable, a hollow pick up arm, meanspivotally mountturntable and a reproducer located within the other endof the hollow pick up arm, a pivot mounting for adjustably' mounting thereproducer within the pick up arm, said pivot mounting including a pairof spring arms rigidly attached to the reproducer and extendingrearwardly therefrom,

. tangs extending outwardly from an intermediate portion of the arms,the pick up arm having V- shape notches of greater width than saidtangs,

the apices oi the V-shapetangs being pivotally I mounted in the apicesof said V- 'shape notches, a pin connecting the rear ends of the arms,an

- er within the pick up arm,

including a pair of arms reproducer and extending rearwardly therefromwithin the pick up arm having V-shape notches of greater width the outerhaving. a hook at its .'screw in the bracket extending arms at -a pointadjacent to the V -'shape tangs, and a spring connected at oneend to thepin its other end engaged in the threads of the adjusting screw in thepickup arm extendin between said arms at a point adjacent to the.V-shape tangs,

end'to the pin and having a hook-at its other threads of the adjustingand a spring connected at one end engaged in the screw. y

'11. In a phonograph including a turntable, a hollow pick up arm,meanspivotally mountin one end of the pick up arm adjacent to theturntable and a reproducer located within the other end of the'hollowpick up arm, mounting for adjustably mounting the reproducsaid pivotmounting rigidly attached tothe forwardly disposed V- hape tangsextending outwardly from an intermediate portion of the arms, aninverted U-shape bracket mounted than said tangs, theapices of theV-shape tangsv being pivctally mounted in the apices of saidV-shape'notches, a pin connecting the rearends of the arms; an adjustingbetween said and having a hook at adjusting screw. E Q v- S R- located,within the a pivot having a hook at its other end up arm adjacent to thev forwardly disposed V-shape'

